Cutter disc for a paper shredder



FIG. 1 is a perspective view of a cutter disc for a paper shredder showing my new design;

FIG. 2 is a front elevational view thereof, a rear elevational view being symmetrical to the front elevational view;

FIG. 3 is a bottom plan view thereof, a top plan view being symmetrical to the bottom plan view; and,

FIG. 4 is a right side elevational view thereof, a left side elevational view being symmetrical to the right side elevational view. 

The ornamental design for a cutter disc for a paper shredder, as shown and described. 